51249073679 has 2 divisors, whose sum is σ = 51249073680. Its totient is φ = 51249073678.

The previous prime is 51249073607. The next prime is 51249073691. The reversal of 51249073679 is 97637094215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51249073679 - 2¹⁶ = 51249008143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51249073679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51249073699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25624536839 + 25624536840.

It is an arithmetic number, because the mean of its divisors is an integer number (25624536840).

Almost surely, 2^51249073679 is an apocalyptic number.

51249073679 is a deficient number, since it is larger than the sum of its proper divisors (1).

51249073679 is an equidigital number, since it uses as much as digits as its factorization.

51249073679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2857680, while the sum is 53.

The spelling of 51249073679 in words is "fifty-one billion, two hundred forty-nine million, seventy-three thousand, six hundred seventy-nine".